Question

Factorise : 5x2 – 15x – 20.​

Answer 1

Answer:

5x^2 – 15x – 20.

= 5(x^2 – 3x – 4).

= 5(x^2 – 4x + x – 4).

= 5{x(x - 4) +1(x - 4)}.

= 5(x-4)(x+1).

Follow me ❤️

Answer 2

Step-by-step explanation:

Aloha !

$\texttt { This is Twilight Astro}$

5x²-15x-20=0

5x²-20x+5x-20=0

5x(x-4)+5(x-4)=0

(x-4)(5x+5)=0

x=4 or 5x= -5

X=4 or X= -1

Hope it will help you

꧁Ⓐⓢⓣⓡⓞ꧂